-/*
- * Init m4a file and write some tech data to given pointers.
- */
-static int aac_get_file_info(char *map, size_t numbytes, __a_unused int fd,
- struct afh_info *afhi)
-{
- int i;
- size_t skip;
- ssize_t ret;
- unsigned long rate = 0, decoder_len;
- unsigned char channels = 0;
- mp4AudioSpecificConfig mp4ASC;
- NeAACDecHandle handle = NULL;
- unsigned char *umap = (unsigned char *) map;
-
- ret = aac_find_esds(umap, numbytes, &skip, &decoder_len);
- if (ret < 0)
- goto out;
- aac_get_taginfo(umap, numbytes, afhi);
- handle = aac_open();
- ret = -E_AAC_AFH_INIT;
- if (NeAACDecInit(handle, umap + skip, decoder_len, &rate, &channels))
- goto out;
- if (!channels)
- goto out;
- PARA_DEBUG_LOG("rate: %lu, channels: %d\n", rate, channels);
- ret = -E_MP4ASC;
- if (NeAACDecAudioSpecificConfig(umap + skip, numbytes - skip, &mp4ASC))
- goto out;
- if (!mp4ASC.samplingFrequency)
- goto out;
- ret = aac_compute_chunk_table(afhi, umap, numbytes);